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The CLI is less resource intensive and very stable when compared to a GUI. For these reasons, network devices are typically accessed through a CLI. GUIs can also fail, crash, or simply not operate as specified. However, GUIs may not always be able to provide all the features available with the CLI. For this reason, most users rely on GUI environments. The GUI example in the figure is more user-friendly and requires less knowledge of the underlying command structure that controls the system.
#Find cisco ios version android
~]$ lsĭesktop Downloads ~]$ GUIĪ GUI such as Windows, macOS, Linux KDE, Apple iOS, or Android allows the user to interact with the system using an environment of graphical icons, menus, and windows. However, it does require that the user have knowledge of the underlying command structure that controls the system. The CLI requires very little overhead to operate. The system executes the command, often providing textual output.
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When using a CLI, the user interacts directly with the system in a text-based environment by entering commands on the keyboard at a command prompt, as shown in the example. Hardware – The physical part of a computer including underlying electronics.Kernel – Communicates between the hardware and software of a computer and manages how hardware resources are used to meet software requirements.
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These requests can be made either through the CLI or GUI interfaces. Shell – The user interface that allows users to request specific tasks from the computer.The user can interact with the shell using a command-line interface (CLI) or a graphical user interface (GUI). The portion that interfaces with applications and the user is known as the shell. As shown in the figure, the portion of the OS that interacts directly with computer hardware is known as the kernel. All end devices and network devices require an operating system (OS).